Different products have different requirements for vacuum packaging. For example, for dry goods, only a lower vacuum degree is needed to prevent oxidation and moisture; while for some fresh meats, a higher vacuum degree is required to extend the shelf life. At the same time, factors such as packaging bags of different materials and the water content of the product also determine that different sealing temperatures are required to ensure the sealing quality, so parameter adjustment is crucial.
Most small household vacuum packaging machines have the function of vacuum degree adjustment. Usually it is achieved through a vacuum pump and a control system, and users can choose the appropriate vacuum degree level according to the characteristics of the product. For example, when packaging tea, a lower vacuum degree level can be selected to remove air and prevent the tea from being crushed; when packaging perishable foods such as sausages, the vacuum degree can be adjusted to a higher level to exhaust as much air as possible and inhibit bacterial growth.
Sealing temperature adjustment is also a common function of small household vacuum packaging machines. The temperature of the heating wire is generally controlled by a temperature controller. For thinner plastic packaging bags, a lower sealing temperature can achieve a good seal to prevent the packaging bags from melting and breaking due to excessive temperature; for thicker or special material packaging bags, such as composite material packaging bags, it is necessary to appropriately increase the sealing temperature to ensure that the seal is firm and airtight.
The parameter adjustment methods of small household vacuum packaging machines are diverse. Some machines are equipped with mechanical knobs, and the vacuum degree and sealing temperature are adjusted by rotating the knobs; some use electronic touch screens, and users can directly enter the required parameters on the screen, which is more intuitive and accurate.
Some high-end small household vacuum packaging machines also have automatic adjustment functions. The machines can automatically adjust the vacuum degree and sealing temperature according to the preset programs and information fed back by the sensors. At the same time, the manual adjustment mode is also retained, which is convenient for users to make personalized settings according to actual experience and special needs.
Although small household vacuum packaging machines can adjust parameters, their adjustment accuracy and stability may be slightly worse than those of industrial-grade packaging machines. However, for daily home use, their accuracy and stability can usually meet the packaging needs of general products.
The small household vacuum packaging machine has certain flexibility and practicality in adjusting parameters such as vacuum degree and sealing temperature. It can meet the packaging needs of household users for different products and provide convenience for daily life.
